Station Overview Station Location
Station Number MN-SL-6 Latitude 46.93
Station Name Hermantown 9.3 NNE Longitude -92.143917
County St. Louis Elevation (ft) 1372



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 11 2.85 1.00 29 1.00 29 0.00 0 0 7 0 0.0 0 0
Nov 11 1.93 0.42 28 0.42 28 0.00 0 0 6 3 1.9 4 9
Dec 11 1.19 0.57 31 0.57 31 0.00 0 0 8 3 6.8 8 30
Jan 12 1.00 0.31 31 0.31 31 0.00 0 0 6 4 7.0 9 31
Feb 12 0.80 1.15 29 1.15 29 0.00 0 0 7 3 23.7 8 28
March 12 1.42 1.92 31 1.92 31 0.00 0 0 16 2 17.1 8 13
April 12 2.38 3.16 29 3.16 29 0.00 0 0 9 0 0.5 1 1
May 12 3.00 6.78 31 6.78 31 0.00 0 0 15 0 0.0 0 0
June 12 4.22 8.91 28 8.91 28 0.00 0 0 11 2 0.0 0 0
July 12 3.97 2.88 31 1.15 21 1.73 10 1 7 2 0.0 0 0
Aug 12 3.55 1.38 31 1.38 31 0.00 0 0 9 2 0.0 0 0
Sept 12 3.91 0.84 29 0.84 29 0.00 0 0 8 1 0.0 0 0
Water Year Totals: 30.22" 29.32" 358 days 27.59" 348 1.73" 10 days 1 109 days 22 days 57.0" 38 days 112 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2011 0.00
10/2/2011 0.00
10/3/2011
10/4/2011 0.00
10/5/2011 0.00
10/6/2011 0.00
10/7/2011 0.00
10/8/2011 0.00
10/9/2011 0.08
10/10/2011 0.00
10/11/2011 0.00
10/12/2011 0.00
10/13/2011 0.47
10/14/2011 0.04
10/15/2011
10/16/2011 0.00
10/17/2011 0.00
10/18/2011 0.00
10/19/2011 0.02
10/20/2011 0.00
10/21/2011 0.00
10/22/2011 0.00
10/23/2011 0.00
10/24/2011 0.32
10/25/2011 0.00
10/26/2011 0.00
10/27/2011 0.02
10/28/2011 0.05
10/29/2011 0.00
10/30/2011 0.00
10/31/2011 0.00
11/1/2011 0.00
11/2/2011 0.05
11/3/2011 0.00
11/4/2011 0.00
11/5/2011 0.00
11/6/2011 0.00
11/7/2011 0.00
11/8/2011 0.00
11/9/2011 0.00
11/10/2011 T
11/11/2011
11/12/2011 0.00
11/13/2011
11/14/2011 0.00
11/15/2011 0.00
11/16/2011 0.07
11/17/2011 T
11/18/2011 0.01
11/19/2011 0.04
11/20/2011 T
11/21/2011 0.00
11/22/2011 0.00
11/23/2011 0.00
11/24/2011 0.00
11/25/2011 0.00
11/26/2011 0.13
11/27/2011 0.12
11/28/2011 0.00
11/29/2011 0.00
11/30/2011 0.00
12/1/2011 0.10
12/2/2011 0.00
12/3/2011 0.00
12/4/2011 0.05
12/5/2011 0.00
12/6/2011 0.00
12/7/2011 0.00
12/8/2011 0.02
12/9/2011 0.00
12/10/2011 0.00
12/11/2011 0.00
12/12/2011 0.00
12/13/2011 T
12/14/2011 0.15
12/15/2011 0.03
12/16/2011 T
12/17/2011 0.00
12/18/2011 T
12/19/2011 0.00
12/20/2011 0.00
12/21/2011 0.00
12/22/2011 0.00
12/23/2011 0.06
12/24/2011 0.09
12/25/2011 0.00
12/26/2011 0.00
12/27/2011 0.00
12/28/2011 0.00
12/29/2011 0.07
12/30/2011 0.00
12/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.04
1/2/2012 T
1/3/2012 0.00
1/4/2012 0.00
1/5/2012 0.00
1/6/2012 0.00
1/7/2012 T
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.00
1/11/2012 T
1/12/2012 0.05
1/13/2012 0.00
1/14/2012 0.00
1/15/2012 0.00
1/16/2012 0.00
1/17/2012 0.00
1/18/2012 0.00
1/19/2012 0.02
1/20/2012 0.00
1/21/2012 0.00
1/22/2012 0.00
1/23/2012 T
1/24/2012 0.03
1/25/2012 0.00
1/26/2012 0.00
1/27/2012 0.00
1/28/2012 0.12
1/29/2012 0.00
1/30/2012 0.05
1/31/2012 0.00
2/1/2012 0.00
2/2/2012 T
2/3/2012 0.00
2/4/2012 0.00
2/5/2012 0.00
2/6/2012 0.00
2/7/2012 0.00
2/8/2012 0.00
2/9/2012 0.00
2/10/2012 0.01
2/11/2012 0.00
2/12/2012 0.00
2/13/2012 0.00
2/14/2012 0.00
2/15/2012 0.00
2/16/2012 T
2/17/2012 0.02
2/18/2012 0.00
2/19/2012 0.00
2/20/2012 0.00
2/21/2012 0.25
2/22/2012 0.16
2/23/2012 0.00
2/24/2012 T
2/25/2012 0.00
2/26/2012 0.11
2/27/2012 0.17
2/28/2012 0.00
2/29/2012 0.43
3/1/2012 0.32
3/2/2012 T
3/3/2012 0.20
3/4/2012 0.12
3/5/2012 0.01
3/6/2012 0.01
3/7/2012 0.00
3/8/2012 0.00
3/9/2012 0.06
3/10/2012 0.00
3/11/2012 0.00
3/12/2012 0.10
3/13/2012 0.23
3/14/2012 0.00
3/15/2012 0.00
3/16/2012 0.00
3/17/2012 0.00
3/18/2012 0.00
3/19/2012 0.00
3/20/2012 0.12
3/21/2012 0.20
3/22/2012 0.06
3/23/2012 0.20
3/24/2012 0.03
3/25/2012 0.00
3/26/2012 0.00
3/27/2012 0.04
3/28/2012 0.02
3/29/2012 T
3/30/2012 0.20
3/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.00
4/2/2012 0.16
4/3/2012 0.00
4/4/2012 0.00
4/5/2012 0.00
4/6/2012 0.00
4/7/2012 0.00
4/8/2012 0.22
4/9/2012 0.00
4/10/2012 0.00
4/11/2012 0.00
4/12/2012 0.00
4/13/2012 0.00
4/14/2012 0.11
4/15/2012 0.00
4/16/2012 1.91
4/17/2012 0.00
4/18/2012 0.31
4/19/2012 0.10
4/20/2012 0.00
4/21/2012 0.00
4/22/2012 0.11
4/23/2012
4/24/2012 0.00
4/25/2012 0.12
4/26/2012 0.12
4/27/2012 0.00
4/28/2012 0.00
4/29/2012 0.00
4/30/2012 0.00
5/1/2012 0.00
5/2/2012 0.30
5/3/2012 0.16
5/4/2012 0.02
5/5/2012 0.00
5/6/2012 0.27
5/7/2012 0.00
5/8/2012 0.00
5/9/2012 0.11
5/10/2012 0.00
5/11/2012 0.00
5/12/2012 0.00
5/13/2012 0.00
5/14/2012 0.00
5/15/2012 0.00
5/16/2012 0.00
5/17/2012 0.00
5/18/2012 0.11
5/19/2012 0.00
5/20/2012 0.67
5/21/2012 0.31
5/22/2012 0.00
5/23/2012 0.27
5/24/2012 1.93
5/25/2012 1.04
5/26/2012 0.00
5/27/2012 0.49
5/28/2012 0.73
5/29/2012 0.34
5/30/2012 0.03
5/31/2012 0.00
6/1/2012
6/2/2012 0.00
6/3/2012 0.00
6/4/2012 0.00
6/5/2012 0.03
6/6/2012 0.00
6/7/2012 T
6/8/2012 0.00
6/9/2012 0.00
6/10/2012 0.00
6/11/2012 0.30
6/12/2012
6/13/2012 0.00
6/14/2012 0.03
6/15/2012 0.72
6/16/2012 0.00
6/17/2012 0.52
6/18/2012 0.65
6/19/2012 0.28
6/20/2012 5.03
6/21/2012 0.74
6/22/2012 0.03
6/23/2012 0.00
6/24/2012 0.58
6/25/2012 0.00
6/26/2012 0.00
6/27/2012 0.00
6/28/2012 T
6/29/2012 0.00
6/30/2012 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2012 0.00
7/2/2012 0.00
7/3/2012 0.45
7/4/2012 0.00
7/5/2012 T
7/6/2012 0.05
7/7/2012 0.45
7/8/2012 0.00
7/9/2012 0.00
7/10/2012 0.00
7/11/2012 0.00
7/12/2012 0.00
7/13/2012 0.00
7/14/2012 T
7/15/2012 0.00
7/16/2012 0.03
7/17/2012 0.02
7/18/2012 0.05
7/19/2012 **
7/20/2012 **
7/21/2012 **
7/22/2012 **
7/23/2012 **
7/24/2012 **
7/25/2012 **
7/26/2012 **
7/27/2012 **
7/28/2012 1.73
7/29/2012 0.00
7/30/2012 0.10
7/31/2012 0.00
8/1/2012 0.00
8/2/2012 0.04
8/3/2012 0.00
8/4/2012 0.55
8/5/2012 0.07
8/6/2012 0.00
8/7/2012 0.00
8/8/2012 T
8/9/2012 0.05
8/10/2012 0.00
8/11/2012 0.00
8/12/2012 0.00
8/13/2012 0.10
8/14/2012 0.00
8/15/2012 0.00
8/16/2012 0.30
8/17/2012 T
8/18/2012 0.00
8/19/2012 0.05
8/20/2012 0.00
8/21/2012 0.00
8/22/2012 0.00
8/23/2012 0.16
8/24/2012 0.00
8/25/2012 0.00
8/26/2012 0.06
8/27/2012 0.00
8/28/2012 0.00
8/29/2012 0.00
8/30/2012 0.00
8/31/2012 0.00
9/1/2012 0.00
9/2/2012 0.00
9/3/2012 0.00
9/4/2012 0.00
9/5/2012 0.00
9/6/2012 T
9/7/2012 0.06
9/8/2012 0.06
9/9/2012 0.16
9/10/2012 0.00
9/11/2012 0.00
9/12/2012 0.00
9/13/2012 0.00
9/14/2012 0.00
9/15/2012 0.00
9/16/2012 0.00
9/17/2012 0.10
9/18/2012 0.00
9/19/2012 0.00
9/20/2012 0.19
9/21/2012 0.04
9/22/2012 0.20
9/23/2012 0.03
9/24/2012
9/25/2012 0.00
9/26/2012 0.00
9/27/2012 0.00
9/28/2012 0.00
9/29/2012 0.00
9/30/2012 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2011 6:55 AM 0.00 0.0 M M M
10/2/2011 8:00 AM 0.00 0.0 M M M
10/4/2011 8:00 AM 0.00 0.0 M M M
10/5/2011 8:00 AM 0.00 0.0 M M M
10/6/2011 8:00 AM 0.00 0.0 M M M
10/7/2011 8:00 AM 0.00 0.0 M M M
10/8/2011 8:00 AM 0.00 0.0 M M M
10/9/2011 8:00 AM 0.08 M M M M
10/10/2011 8:00 AM 0.00 0.0 M M M
10/11/2011 8:00 AM 0.00 0.0 M M M
10/12/2011 8:00 AM 0.00 0.0 M M M
10/13/2011 8:00 AM 0.47 M M M M T-storm moved S>N 4:15pm. Prominent shelf cloud. Peak rainfall rate 1.38 in/min @ 4:35 pm.
10/14/2011 8:00 AM 0.04 M M M M
10/16/2011 8:00 AM 0.00 0.0 M M M
10/17/2011 8:00 AM 0.00 0.0 M M M
10/18/2011 8:00 AM 0.00 0.0 M M M
10/19/2011 8:00 AM 0.02 M M M M
10/20/2011 8:00 AM 0.00 0.0 M M M
10/21/2011 8:00 AM 0.00 0.0 M M M
10/22/2011 8:00 AM 0.00 0.0 M M M
10/23/2011 8:00 AM 0.00 0.0 M M M
10/24/2011 8:00 AM 0.32 M M M M
10/25/2011 8:00 AM 0.00 0.0 M M M
10/26/2011 8:00 AM 0.00 0.0 M M M
10/27/2011 8:00 AM 0.02 M M M M
10/28/2011 8:00 AM 0.05 M M M M -R 9-10 AM. -IP 3-4 PM
10/29/2011 8:00 AM 0.00 0.0 M M M
10/30/2011 8:00 AM 0.00 0.0 M M M
10/31/2011 8:00 AM 0.00 0.0 M M M
11/1/2011 8:00 AM 0.00 0.0 M M M
11/2/2011 8:00 AM 0.05 M M M M
11/3/2011 8:00 AM 0.00 0.0 M M M
11/4/2011 8:00 AM 0.00 0.0 M M M
11/5/2011 8:00 AM 0.00 0.0 M M M
11/6/2011 8:00 AM 0.00 0.0 M M M
11/7/2011 8:00 AM 0.00 0.0 M M M
11/8/2011 8:00 AM 0.00 0.0 M M M
11/9/2011 8:00 AM 0.00 0.0 M M M
11/10/2011 8:00 AM T 0.1 T 0.0 0.00
11/12/2011 8:00 AM 0.00 0.0 M M M
11/14/2011 8:00 AM 0.00 0.0 M M M
11/15/2011 8:00 AM 0.00 0.0 M M M
11/16/2011 8:00 AM 0.07 0.6 M 0.5 M
11/17/2011 8:00 AM T 0.0 M 0.5 M
11/18/2011 8:00 AM 0.01 T M 0.5 M
11/19/2011 8:00 AM 0.04 1.1 M 1.5 M
11/20/2011 8:00 AM T T 1.50 M M
11/21/2011 8:00 AM 0.00 0.0 M 1.5 M
11/22/2011 8:00 AM 0.00 0.0 M 1.0 M
11/23/2011 8:00 AM 0.00 0.0 M 0.5 M
11/24/2011 8:00 AM 0.00 0.0 M 0.3 M
11/25/2011 8:00 AM 0.00 0.0 M 0.0 M
11/26/2011 8:00 AM 0.13 M M 0.0 M
11/27/2011 8:00 AM 0.12 0.1 M 0.1 M -R til 6PM, then -S, No. accum.
11/28/2011 8:00 AM 0.00 0.0 M 0.0 M
11/29/2011 8:00 AM 0.00 0.0 M 0.0 M
11/30/2011 8:00 AM 0.00 0.0 M 0.0 M
12/1/2011 8:00 AM 0.10 M M M M (edit: snow accumulation initially recorded as 15.0". changed to NA due to decimal error suspcion. observer contacted. P.G.)
12/2/2011 8:00 AM 0.00 0.0 M 1.5 M
12/3/2011 8:00 AM 0.00 0.0 M 0.8 M
12/4/2011 8:00 AM 0.05 0.6 M 1.5 M
12/5/2011 8:00 AM 0.00 0.0 M 1.5 M
12/6/2011 8:00 AM 0.00 0.0 M 1.0 M
12/7/2011 8:00 AM 0.00 0.0 M 1.0 M
12/8/2011 8:00 AM 0.02 0.5 M 1.5 M
12/9/2011 8:00 AM 0.00 0.0 M 1.5 M
12/10/2011 8:00 AM 0.00 0.0 M 1.0 M
12/11/2011 8:00 AM 0.00 0.0 M 1.0 M
12/12/2011 8:00 AM 0.00 0.0 M 0.5 M
12/13/2011 8:00 AM T M M 0.5 M drizzle
12/14/2011 8:00 AM 0.15 1.9 M 2.0 M S,L,F (LIFR). Snow very wet, but no rain
12/15/2011 8:00 AM 0.03 0.5 M 2.5 M
12/16/2011 8:00 AM T 0.2 M 2.5 M AM flurries
12/17/2011 8:00 AM 0.00 0.0 M 2.5 M
12/18/2011 8:00 AM T T M 2.0 M
12/19/2011 8:00 AM 0.00 0.0 M 2.0 M
12/20/2011 8:00 AM 0.00 0.0 M 1.5 M
12/21/2011 8:00 AM 0.00 0.0 M 1.5 M
12/22/2011 8:00 AM 0.00 0.0 M 1.5 M
12/23/2011 8:00 AM 0.06 0.5 M 2.0 M
12/24/2011 8:00 AM 0.09 1.6 M 4.0 M
12/25/2011 8:00 AM 0.00 0.0 M 4.0 M
12/26/2011 8:00 AM 0.00 0.0 M 4.0 M
12/27/2011 8:00 AM 0.00 0.0 M 3.0 M rapid ablation (loss 1") due to Chinook conditions Mon.: Hi 6, SSW winds 10G30.
12/28/2011 8:00 AM 0.00 0.0 M 3.0 M
12/29/2011 8:00 AM 0.07 1.0 M 3.0 M
12/30/2011 8:00 AM 0.00 0.0 M 3.0 M
12/31/2011 8:00 AM 0.00 0.0 M 3.0 M
1/1/2012 8:00 AM 0.04 0.8 M 4.0 M
1/2/2012 8:00 AM T 0.2 M 4.0 M
1/3/2012 8:00 AM 0.00 0.0 M 4.0 M
1/4/2012 8:00 AM 0.00 0.0 M 4.0 M
1/5/2012 8:00 AM 0.00 0.0 M 4.0 M
1/6/2012 8:00 AM 0.00 0.0 M 4.0 M
1/7/2012 8:00 AM T 0.1 M 3.5 M
1/8/2012 8:00 AM 0.00 0.0 M 3.5 M
1/9/2012 8:00 AM 0.00 0.0 M 3.5 M
1/10/2012 8:00 AM 0.00 0.0 M 3.5 M
1/11/2012 8:00 AM T M M 3.0 M -SN -IP
1/12/2012 8:00 AM 0.05 1.0 M 4.0 M
1/13/2012 8:00 AM 0.00 0.0 M 4.0 M
1/14/2012 8:00 AM 0.00 0.0 M 4.0 M
1/15/2012 8:00 AM 0.00 0.0 M 4.0 M
1/16/2012 8:00 AM 0.00 0.0 M 3.5 M
1/17/2012 8:00 AM 0.00 0.0 M 3.5 M
1/18/2012 8:00 AM 0.00 0.0 M 3.5 M
1/19/2012 8:00 AM 0.02 0.8 M 4.0 M
1/20/2012 8:00 AM 0.00 0.0 M 4.0 M
1/21/2012 8:00 AM 0.00 0.0 M 4.0 M
1/22/2012 8:00 AM 0.00 0.0 M 4.0 M
1/23/2012 8:00 AM T 0.1 M 4.0 M
1/24/2012 8:00 AM 0.03 1.0 M 5.0 M
1/25/2012 8:00 AM 0.00 0.0 M 5.0 M
1/26/2012 8:00 AM 0.00 0.0 M 4.0 M
1/27/2012 8:00 AM 0.00 0.0 M 4.0 M
1/28/2012 8:00 AM 0.12 2.0 M 6.0 M
1/29/2012 8:00 AM 0.00 0.0 M 6.0 M
1/30/2012 8:00 AM 0.05 1.0 M 6.5 M
1/31/2012 7:40 AM 0.00 0.0 M 6.0 M
2/1/2012 8:00 AM 0.00 0.0 M 5.0 M
2/2/2012 8:00 AM T T M 4.5 M IP CA. 8PM WED. NO ACCUM.
2/3/2012 8:00 AM 0.00 0.0 M 4.0 M
2/4/2012 8:00 AM 0.00 0.0 M 4.0 M
2/5/2012 8:00 AM 0.00 0.0 M 4.0 M
2/6/2012 8:00 AM 0.00 0.0 M 4.0 M
2/7/2012 8:00 AM 0.00 0.0 3.50 M M
2/8/2012 8:00 AM 0.00 0.0 M 3.5 M
2/9/2012 8:00 AM 0.00 0.0 M 3.5 M
2/10/2012 8:00 AM 0.01 0.5 M 3.5 M Fast-moving CF, followed by shapr drop in temps: -21 10th AM.
2/11/2012 8:00 AM 0.00 0.0 M 3.5 M
2/12/2012 8:00 AM 0.00 0.0 M 3.5 M
2/13/2012 8:00 AM 0.00 0.0 M 3.5 M
2/14/2012 8:00 AM 0.00 0.0 M 3.0 M
2/15/2012 6:33 AM 0.00 0.0 M 3.0 M
2/16/2012 8:00 AM T 0.2 M 2.5 M
2/17/2012 8:30 AM 0.02 0.5 M 3.0 M -sn
2/18/2012 8:00 AM 0.00 0.0 M 3.0 M (edit: total snow depth initially recorded as 30.0". changed to 3.0" to agree with prior observations. P.G.)
2/19/2012 8:00 AM 0.00 0.0 M 3.0 M
2/20/2012 8:00 AM 0.00 0.0 M 3.0 0.70
2/21/2012 8:55 AM 0.25 3.0 M 6.0 M -sn
2/22/2012 8:30 AM 0.16 2.0 M 6.0 M 1st sig. accum of 2011-12 winter. High water content: temps. 0 +/- 1C during precip.
2/23/2012 8:00 AM 0.00 0.0 M 6.0 M
2/24/2012 8:00 AM T T M 6.0 M
2/25/2012 8:00 AM 0.00 0.0 M 6.0 M
2/26/2012 8:00 AM 0.11 3.0 M 7.5 M -SN. BS. Considerable drifting at snowtable site.
2/27/2012 8:00 AM 0.17 4.5 M 10.5 1.47
2/28/2012 8:00 AM 0.00 0.0 M 10.0 M
2/29/2012 8:30 AM 0.43 10.0 M 20.0 M SN+ BS. Est 06520G28. Vis <1000. M02.
3/1/2012 8:00 AM 0.32 8.0 M 23.0 M
3/2/2012 8:00 AM T 0.1 M 20.0 M
3/3/2012 8:00 AM 0.20 2.8 M 18.0 M -SN continuing
3/4/2012 8:00 AM 0.12 4.0 M 18.0 M -SN continuing
3/5/2012 8:00 AM 0.01 0.7 M 20.0 M Storm total about 8.5".Continual precip (-Sn/_SHSN) from 3/2 ca. 9PM yjtu 1/4 4PM. "Lake Swirl"
3/6/2012 8:00 AM 0.01 0.7 M 21.0 1.95
3/7/2012 8:00 AM 0.00 0.0 M 19.0 M
3/8/2012 8:00 AM 0.00 0.0 M 12.0 M total snow depth decreasing rapidly
3/9/2012 8:00 AM 0.06 0.7 M 11.0 M
3/10/2012 8:00 AM 0.00 0.0 M 11.0 M
3/11/2012 8:00 AM 0.00 0.0 M 9.0 M
3/12/2012 8:00 AM 0.10 M M 7.0 1.84 -R
3/13/2012 8:00 AM 0.23 M M 5.5 M -R
3/14/2012 8:00 AM 0.00 0.0 M M M
3/15/2012 8:00 AM 0.00 0.0 M M M
3/16/2012 8:00 AM 0.00 0.0 M M M
3/17/2012 8:00 AM 0.00 0.0 M M M
3/18/2012 8:00 AM 0.00 0.0 M M M
3/19/2012 8:00 AM 0.00 0.0 M 0.0 0.00 due to record high temps recently, snow remains only in shaded places
3/20/2012 8:00 AM 0.12 M M M M
3/21/2012 8:00 AM 0.20 M M M M Vis <1/4mi F
3/22/2012 8:00 AM 0.06 M M M M
3/23/2012 8:00 AM 0.20 M M M M vis<1/4 mi F
3/24/2012 8:00 AM 0.03 M M M M
3/25/2012 8:00 AM 0.00 0.0 M M M
3/26/2012 8:00 AM 0.00 0.0 M M M
3/27/2012 8:00 AM 0.04 M M M M
3/28/2012 8:00 AM 0.02 M M M M
3/29/2012 8:00 AM T M M M M occ. -ShSn, -L
3/30/2012 7:45 AM 0.20 0.1 M M M PL 2:30-3:00 PM. PL-Sn-R 8:00-10:30 PM. L Br developed.
3/31/2012 8:00 AM 0.00 0.0 M M M Vis<1/4 mi F
4/1/2012 8:00 AM 0.00 0.0 M M M
4/2/2012 8:00 AM 0.16 M M M M T-storm
4/3/2012 8:00 AM 0.00 0.0 M M M
4/4/2012 8:00 AM 0.00 0.0 M M M
4/5/2012 8:00 AM 0.00 0.0 M M M
4/6/2012 8:00 AM 0.00 0.0 M M M
4/7/2012 8:00 AM 0.00 0.0 M M M
4/8/2012 8:00 AM 0.22 M M M M
4/9/2012 8:00 AM 0.00 0.0 M M M
4/10/2012 8:00 AM 0.00 0.0 M M M 2:30PM: brief period of SG. +3.
4/11/2012 7:00 AM 0.00 0.0 M M M
4/12/2012 8:00 AM 0.00 0.0 M M M
4/13/2012 8:00 AM 0.00 0.0 M M M
4/14/2012 8:00 AM 0.11 M M M M
4/15/2012 8:00 AM 0.00 0.0 M M M
4/16/2012 7:50 AM 1.91 0.5 0.04 0.5 0.04 Major mesocyclone. Gusty NE winds. Peak wnd 03055. Occ. thunder 1-3PM 15th. T-storm 5-530 PM. Lowest press 29.48 15th eve.
4/17/2012 8:00 AM 0.00 0.0 M 0.0 M
4/18/2012 7:50 AM 0.31 M M M M
4/19/2012 7:50 AM 0.10 M M M M
4/20/2012 6:30 AM 0.00 0.0 M M M
4/21/2012 8:00 AM 0.00 0.0 M M M
4/22/2012 8:00 AM 0.11 T M M M -R-Sn, no accum. +3.
4/24/2012 8:00 AM 0.00 0.0 M M M
4/25/2012 8:00 AM 0.12 M M M M
4/26/2012 8:00 AM 0.12 0.0 M M M
4/27/2012 8:00 AM 0.00 0.0 M M M
4/28/2012 8:00 AM 0.00 0.0 M M M
4/29/2012 8:00 AM 0.00 0.0 M M M
4/30/2012 7:30 AM 0.00 0.0 M M M
5/1/2012 8:00 AM 0.00 0.0 M M M
5/2/2012 8:00 AM 0.30 M M M M
5/3/2012 8:00 AM 0.16 M M M M
5/4/2012 8:00 AM 0.02 M M M M
5/5/2012 8:00 AM 0.00 0.0 M M M
5/6/2012 8:00 AM 0.27 M M M M
5/7/2012 8:00 AM 0.00 0.0 M M M
5/8/2012 8:00 AM 0.00 0.0 M M M
5/9/2012 8:00 AM 0.11 M M M M
5/10/2012 8:00 AM 0.00 0.0 M M M
5/11/2012 8:00 AM 0.00 0.0 M M M
5/12/2012 8:00 AM 0.00 0.0 M M M
5/13/2012 8:00 AM 0.00 0.0 M M M
5/14/2012 8:00 AM 0.00 0.0 M M M
5/15/2012 8:00 AM 0.00 0.0 M M M
5/16/2012 8:00 AM 0.00 0.0 M M M
5/17/2012 8:00 AM 0.00 0.0 M M M
5/18/2012 8:00 AM 0.11 M M M M
5/19/2012 8:00 AM 0.00 0.0 M M M
5/20/2012 8:00 AM 0.67 M M M M T-storm
5/21/2012 8:00 AM 0.31 M M M M Periods of R-,occ. R+ al morning. Gusty N. winds. Temp 9.
5/22/2012 8:00 AM 0.00 0.0 M M M
5/23/2012 8:00 AM 0.27 M M M M Tu Am .11. Wd AM .16, continues
5/24/2012 8:00 AM 1.93 M M M M T-storm 1600, 23rd. Continuous -R thereafter. stalled occulusion?
5/25/2012 6:40 AM 1.04 M M M M Continual RA, F, all day til 5 PM. T-storms P.M.
5/26/2012 8:00 AM 0.00 0.0 M M M
5/27/2012 8:00 AM 0.49 M M M M
5/28/2012 8:00 AM 0.73 M M M M thunderstorm
5/29/2012 8:00 AM 0.34 M M M M T-storm.Lrg. Cld>cld. Sever t-storm warning, but no wind, no hail here.
5/30/2012 8:00 AM 0.03 M M M M
5/31/2012 8:00 AM 0.00 0.0 M M M
6/2/2012 8:00 AM 0.00 0.0 M M M
6/3/2012 8:00 AM 0.00 0.0 M M M
6/4/2012 7:40 AM 0.00 0.0 M M M
6/5/2012 8:00 AM 0.03 M M M M PM instability sh
6/6/2012 8:00 AM 0.00 0.0 M M M
6/7/2012 8:00 AM T M M M M
6/8/2012 8:00 AM 0.00 0.0 M M M
6/9/2012 8:00 AM 0.00 0.0 M M M
6/10/2012 8:00 AM 0.00 0.0 M M M
6/11/2012 8:00 AM 0.30 M M M M
6/13/2012 8:00 AM 0.00 0.0 M M M
6/14/2012 8:00 AM 0.03 M M M M
6/15/2012 8:00 AM 0.72 M M M M occ. thunder. Gusty s-se winds, some trees toppled, branches broken. occ. -rsh all dsay.
6/16/2012 8:00 AM 0.00 0.0 M M M
6/17/2012 8:00 AM 0.52 M M M M T-storm. Calm winds.
6/18/2012 8:00 AM 0.65 M M M M
6/19/2012 8:00 AM 0.28 M M M M
6/20/2012 7:40 AM 5.03 M M M M Continual t-storms last 24 hrs, many very heavy to intense, est. 4+"/hr. Huge mesocyclonic system. "Train-echo effect. All streets in Duluth (12 mi. so) closed.
6/21/2012 8:00 AM 0.74 M M M M T-storm, intense rain, Flooding continues, especially on city streets and parking lots.
6/22/2012 8:00 AM 0.03 M M M M
6/23/2012 8:00 AM 0.00 0.0 M M M
6/24/2012 8:00 AM 0.58 M M M M -RA 7:30-10;30 AM & ca. 8:00-10;30 PM
6/25/2012 8:00 AM 0.00 0.0 M M M
6/26/2012 8:00 AM 0.00 0.0 M M M
6/27/2012 8:00 AM 0.00 0.0 M M M
6/28/2012 8:00 AM T M M M M
6/29/2012 8:00 AM 0.00 0.0 M M M
6/30/2012 8:00 AM 0.00 0.0 M M M
7/1/2012 8:00 AM 0.00 0.0 M M M
7/2/2012 8:00 AM 0.00 0.0 M M M
7/3/2012 8:00 AM 0.45 M M M M Intense T-storm, continual lightning, SW gust to 30K.
7/4/2012 8:00 AM 0.00 0.0 M M M
7/5/2012 8:00 AM T M M M M 8PM: Cb, Cu mammatus, gusty, var. wnds, no precip.
7/6/2012 8:00 AM 0.05 M M M M thunderstorm, -RA, winds calm
7/7/2012 8:00 AM 0.45 M M M M several thunderstorms,-Ra/R thruout day, clrning by 8PM
7/8/2012 8:00 AM 0.00 0.0 M M M
7/9/2012 8:00 AM 0.00 0.0 M M M
7/10/2012 8:00 AM 0.00 0.0 M M M
7/11/2012 8:00 AM 0.00 0.0 M M M
7/12/2012 8:00 AM 0.00 0.0 M M M
7/13/2012 8:00 AM 0.00 0.0 M M M
7/14/2012 8:00 AM T M M M M
7/15/2012 8:00 AM 0.00 0.0 M M M
7/16/2012 8:00 AM 0.03 M M M M
7/17/2012 8:00 AM 0.02 M M M M
7/18/2012 8:00 AM 0.05 M M M M
7/29/2012 8:00 AM 0.00 0.0 M M M
7/30/2012 8:00 AM 0.10 M M M M
7/31/2012 8:00 AM 0.00 0.0 M M M
8/1/2012 8:00 AM 0.00 0.0 M M M
8/2/2012 8:00 AM 0.04 M M M M
8/3/2012 8:00 AM 0.00 0.0 M M M
8/4/2012 8:00 AM 0.55 M M M M T-storm
8/5/2012 8:00 AM 0.07 M M M M
8/6/2012 8:00 AM 0.00 0.0 M M M
8/7/2012 8:00 AM 0.00 0.0 M M M
8/8/2012 8:00 AM T M M M M
8/9/2012 8:00 AM 0.05 M M M M
8/10/2012 8:00 AM 0.00 0.0 M M M
8/11/2012 8:00 AM 0.00 0.0 M M M
8/12/2012 8:00 AM 0.00 0.0 M M M
8/13/2012 8:00 AM 0.10 M M M M
8/14/2012 8:00 AM 0.00 0.0 M M M
8/15/2012 8:00 AM 0.00 0.0 M M M
8/16/2012 8:00 AM 0.30 M M M M T-storm. Ra ended early am, wnds. gusty NW
8/17/2012 8:00 AM T M M M M
8/18/2012 8:00 AM 0.00 0.0 M M M
8/19/2012 8:00 AM 0.05 M M M M CF passge 5PM
8/20/2012 8:00 AM 0.00 0.0 M M M
8/21/2012 8:00 AM 0.00 0.0 M M M
8/22/2012 8:00 AM 0.00 0.0 M M M
8/23/2012 8:00 AM 0.16 M M M M
8/24/2012 8:00 AM 0.00 0.0 M M M
8/25/2012 8:00 AM 0.00 0.0 M M M
8/26/2012 8:00 AM 0.06 M M M M
8/27/2012 8:00 AM 0.00 0.0 M M M
8/28/2012 8:00 AM 0.00 0.0 M M M
8/29/2012 8:00 AM 0.00 0.0 M M M
8/30/2012 8:00 AM 0.00 0.0 M M M
8/31/2012 8:00 AM 0.00 0.0 M M M
9/1/2012 8:00 AM 0.00 0.0 M M M
9/2/2012 8:00 AM 0.00 0.0 M M M
9/3/2012 8:00 AM 0.00 0.0 M M M
9/4/2012 8:00 AM 0.00 0.0 M M M
9/5/2012 8:00 AM 0.00 0.0 M M M
9/6/2012 8:00 AM T M M M M
9/7/2012 8:00 AM 0.06 M M M M 1/4" foresast
9/8/2012 8:00 AM 0.06 M M M M
9/9/2012 8:00 AM 0.16 0.0 M M M (edit: daily precip initially recorded as 0.00". changed to NA due to incongruity with surroundings. P.G.) (observer-confirmed 0.16". P.G.)
9/10/2012 8:00 AM 0.00 0.0 M M M
9/11/2012 8:00 AM 0.00 0.0 M M M
9/12/2012 8:00 AM 0.00 0.0 M M M
9/13/2012 8:00 AM 0.00 0.0 M M M
9/14/2012 8:00 AM 0.00 0.0 M M M
9/15/2012 8:00 AM 0.00 0.0 M M M
9/16/2012 8:00 AM 0.00 0.0 M M M
9/17/2012 8:00 AM 0.10 M M M M
9/18/2012 8:00 AM 0.00 0.0 M M M
9/19/2012 8:00 AM 0.00 0.0 M M M
9/20/2012 8:00 AM 0.19 M M M M Gusty NW winds pk 22K. RSh cont. thru night.
9/21/2012 8:00 AM 0.04 M M M M
9/22/2012 8:00 AM 0.20 M M M M
9/23/2012 8:00 AM 0.03 M M M M
9/25/2012 8:00 AM 0.00 0.0 M M M
9/26/2012 8:00 AM 0.00 0.0 M M M
9/27/2012 8:00 AM 0.00 0.0 M M M
9/28/2012 8:00 AM 0.00 0.0 M M M
9/29/2012 8:00 AM 0.00 0.0 M M M
9/30/2012 8:00 AM 0.00 0.0 M M M vis 3 fog



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
7/19/2012 7/28/2012 8:00 AM 10 1.73 M M vacation



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground